Home / 76,255.07-105,230.73-42,263.45

Finding the Fourth Proportional to 76,255.07, 105,230.73 and 42,263.45

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Solution

The fourth proportional to 76,255.07, 105,230.73 and 42,263.45 is: 58,322.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,255.07 : 105,230.73 = 42,263.45 : x
  2. Step 2: Convert to fraction form
    76,255.07/105,230.73 = 42,263.45/x
  3. Step 3: Cross multiply
    76,255.07x = 105,230.73 × 42,263.45
  4. Step 4: Simplify right side
    76,255.07x = 4,447,413,169.66
  5. Step 5: Solve for x
    x = 4,447,413,169.66/76,255.07
  6. Step 6: Final answer
    x = 58,322.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.